Source: Sarah Avery, WRAL TECHWIRE, 3/15/21

People grow old at different rates, regardless of what the calendar says. And for those whose bodies age more quickly, the cumulative effects show up as early as midlife, when signs of dementia and physical frailty begin to emerge, according to a study led by Duke researchers. The findings, appearing Monday in the journal Nature Aging, suggest that identifying and treating the diseases of old age should begin by the time people celebrate their 45th birthday, before the problems escalate, degrade quality of life and impose

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